Elevator-wrench.



C. S. WRIGHT.

ELEVATOR WRENCH- APPLICATION FILED SEPT. 29, 1914.

1,168,042, Patented Jan, 11, 1916.

2 SHEETS-SHEET 1.

E nu mm o J 6? 54 f '65- i 22 5 II5 2. J

r 54- E nu I mu 3 ZW /W 0/1 W? Aliomey COLUMBIA PLANOGRAPH c0., WASHINGTON. 04 c.

C. S. WRIGHT.

ELEVATOR WRENCH. APPLXCATION FlLED SEPT. 29. 1914.

1,168,042, Patented Jan. 11, 1916.

. a 1 2 SHEETS-SHEET 2.

UNITED STATES PATENT orrion.

CLYDE s. WRIGHT, OP TOLEDO, onransslenon TO THE NATIONAL SUPPLY COMPANY,

- or TOLEDO, OHIO, A CORPORATION or OHIO.

ELEVATOR-WRENCH.

Application filed September 29, 1914.

To all whom it may concern.

Be it known that I, CLYDE S. WRIGHT, a citizen of the United States, residing at T0- ledo, in the county of Lucas and State of Ohio, have invented new and useful Improvements in Elevatorrenches, of which the following is a specification.

My invention relates to elevators for drawing casings from wells, in combination with means serving as a wrench or a pair of tongs for unscrewing the casings or their couplings. v

It is the principal object of this invention to dispense with a secondpair of tongs usually used with elevators and to combine the tong or wrench feature with the elevator. In my Patent No. 1,114,663, granted October 20, 1914, I have shown the elevator and the breaking-out tongs each separately car ried by the rotary table of a well-drilling machine. In the present invention, I omit the lower tongs and incorporate a wrench 01' tong feature in the elevator, which performs the functions of both.

Referring to the accompanying drawings, Figure 1 is a plan of my inventionapplied to a rotary well-drilling apparatus also shown in a plan view; Fig. 2, a side elevation of Fig. 1; Fig. 3, a plan of my invention disconnected from other apparatus; Fig. 4, a combined side elevation and vertical section of my invention with a pipe and a'coupling therein; and Fig. 5, a plan, on a reduced scale, of the base section of my elevator wrench.

On the drawings, 1 designates a rotary table of a well-drilling apparatus. The tablesupports on its upper surface the two parallel horizontal gripping aws 2 made to move toward or away from each other by turning the right and left handed screws 3 carried by the supports 4 on the table and working in the ends of the jaws in an obvious manner. The apparatus thus described is well-known, there being several varieties of rotary tables with clamping jaws constructed and operated in various ways.

My invention can be used with any design of table having jaws or other means for supporting and holding my elevator wrench. It can be used with any vise-like or equivalent structure.

I provide a base or member having a cen I tral vertical opening and divided through Specification of Letters Patent.

Patented Jan. 11, 1916.

Serial NO. 864,083.

the opening into lateral halves or sections 4 and 5 on the line or vertical plane'6. The body of the base is clamped between the jaws 2, the jaws engage the vertical ribs 7 on the outer surface of the body. The sections4 and 5 have hon'rizontally-projeoting flanges 8 at their upper ends, these flanges resting on the upper surface of the jaws 2 to support the base. Each half of the base is provided with opposite vertical flanges 9 at right angles to the ribs 7 the flanges at each side of the base being contiguous on the line or plane 6. The halves of the base are kept in register by the dowel pins 10 extending from'one half into the other. The upper face of the base has the vertical driving-pin 11 which drives the elevator wrench now to be described.

v The elevator wrench has the main section 12 and the swinging section 13 connected at its ends to the main section by the hingepins 14 and 15. The two sections 12 and 13 when closed and connected by the hinge-pins inclose a vertical central opening 17 having its upper portion with a larger diameter thanits lower portion, the two portions being connected by the annular horizontal ledge or shoulder 16 on which the lower ends of a coupling, as 18, may rest, the pipe, as 19, which has its upper end in the coupling extending down through or being surrounded by the opening 17, as shown in Fig. 4; The shoulder 16 is on both the sections 12 and 13 (Fig. 3). The top of the shoulder 16 is provided preferably with the hard vertical steel pins 20 on which the lower end of the coupling 18 directly rests in order to obtain greater friction than could be had with the coupling supported directly in the shoulder 16. The section 12 has at diametrically opposite sides the two external ears or lugs 21 in which the hoisting links 22 are placed for connection with a suitable hoisting apparatus.

The lower endof the closed sections 12 and 13 is provided with the reduced extension 23 which projects into the annular groove 24 in the base, the groove being an enlargement of the central opening 25 in the base. The horizontal shoulder 26 at the junction of the extension 23 with the body of the elevator wrench rests on the upper surface of the base which serves as a seat for the elevator wrench.

The pivoted member 13 of the elevator wrench has the horizontal opening 27 in which the dog or lever 28 is pivoted on the vertical pin 29. The inner end of the dog has the biting teeth 30 and 31 at its inner corners, one at each side of a vertical plane through the pin 29 and the center of the opening 17. The teeth are arranged so that when the lever 28 is in its central position the teeth do not project into the opening 17, but so that as the lever is swung to one side or the other of its central position, the tooth 30 or 31, as the case may be, is projected into the opening 17 and into contact with a coupling, if one is in the opening. The pin 11 and the outer end of the lever 28 are arranged so that, as the table 1 is rotated, the pin 11 will engage the lever and turn it on the pin 29. The pin la is shown movable vertically so as to permit the section 13 to be swung on the pin 15 as shown in dotted lines on Fig. 3, so that the section 12 may be slid around a pipe or a coupling or removed therefrom.

32 represents a second pipe above the coupling 18 and connected thereto by the coupling 33. The latter has thereon the pipe tongs or wrench 34: having its handle 35 in engagement with the fixed stop 36.

37 is the lower end of a support for the tongs. The rotary table being centrally over a string of pipe to be removed from a well, the pipe is raised until a coupling is brought above the table between the two sections t and 5 of the base which has been tightly clamped between the jaws 2. The elevator wrench. with the section 13 swung out as shown on Fig. 3 is slid around the pipe with the shoulder 16 below the coupling, as shown on Fig. 4c. The section 13 is then closed, that is, swung to its full line position and secured to the section 12 by the pin 14. The string of pipe is then lowered so that the coupling rests on the pins 20. The tongs 3a are applied to the pipe above the coupling or to the upper section 33 of the coupling, as the case may be, and the handle of the tongs placed on the side of the stop 36 toward which the table 1 moves. The table 1 is caused to rotate in the direction indicated by the arrow on Fig. l. The stop 36 prevents the tongs and the coupling or pipe engaged thereby from rotating with the table. The pin 11 which rotates with the table engages the lever 28 and causes the tooth 30 to engage the coupling 18, thereby rigidly connecting the latter to the table and causing the coupling 18 with the pipe 19 to be unscrewed from the coupling 33. When the couplings 18 and 33 are disconnected, the pipe 32 and its coupling 33 are removed; a hoisting device is connected to the links 22 and the elevator wrench is caused to ascend, taking the string of pipe suspended on the coupling 18 with it. hen the next coupling comes above the base already between the aws 2, another elevator wrench is used but on the pipe below the coupling, and the tongs 34 are again applied as already described with respect to the couplings l8 and 33, and the pipes 19 and 32. By reversing the tongs 34 and putting the handle on the other side of the stop 36, and by having the lever 28 on the other side of the pin 11 and reversing the direction of rotation of the table, couplings may be screwed together. The friction between the coupling 18 and the pins 20 is greater than between the shoulder 26 and the base, whereby when the rotary table is started the pin 11 may be moved into engagement with the lever 28 and cause the latter to lock the elevator and the coupling together before the elevator begins to rotate.

I claim 1. The combination of a sleeve comprising two members, one member having a lateral opening to allow a pipe to pass through it transversely, the other member being pivoted at one end to the first member, and removably secured at the other end to the first member, an annular shoulder within the sleeve forming a rest for the lower end of a pipe coupling, a lever pivoted in a lateral opening in one of the members, the inner end of the lever having teeth for engagement with the pipe coupling when on the said shoulder, a rotary table supporting the sleeve, means rotatable with the table and engageable with the remaining end of the lever to cause the lever to rotate the sleeve and coupling, and means carried by the sleeve for engagement with a hoisting mechanism.

2. The combination of a horizontal rotary device having an axial opening, a sleeve comprising two hinged members having a reduced annular lower extension fitting the said axial opening, and a shoulder resting on the said rotary device, a lever pivoted in a lateral opening in one member and having its inner end toothed and egageable with a coupling in the said axial opening and on an annular shoulder within the axial opening, means on the rotary device for engagement with the outer end of the lever for causing the lever to rotate the sleeve and coupling, and means carried by the sleeve for engagement with a hoisting mechanism.

3. In a pipe elevator wrench, a sleeve arranged to surround a pipe coupling and the upper end of a pipe connected thereto, the sleeve having an annular shoulder carrying steel pins on which the lower end of the coupling rests, and means carried by the sleeve above the shoulder for rigidly con necting the sleeve and coupling together.

4. In an elevator wrench, a sleeve having an opening to receive a coupling and the upper end of a pipe connected thereto, the the coupling and sleeve together, and meansopening being contracted to form a shoulder, on the rotary device for so moving the lever. 10 steel pins carried by the shoulder and form- Signed at Toledo, Ohio, this 25th day of ing a rest for the lower end of the coupling, September, 1914.

a rotary device on which the sleeve moves CLYDE S. WRIGHT. with less friction than that between the con- \Vitnesses:

pling and the steel pins, a lever carried by R. F. HILL,

the sleeve and movable to rigidly connect S. W. JONES.

Copies of this patent may be obtained for five cents each, by addressing the "Commissioner of Patents, Washington, D. 0. 

